Saw grinder



Nov. 3, 1925- 1,560,317

J. w. RAUCH ET AL SAW GRINDER 1,560317 Nov. 3 1925 CH EI SAW muunu Filed Jim. 2a. 1925 s Sheets-Sheot 2 Nov. 1925.

1,560,317 J. w. RAUCH sr AL SAW GRINDER Filod Ja.m 2a. 1925 s Sheets-Sheet 5 mvsu'mn ATI'DRNEY Patented N ov. 3, 1925.

UNITED STATES PATENT OFFICE JOHN W. murcn AND ROY.A.L R. BACH, 0 NEWPORT, WASHINGTON.

SAW GRINDER.

Application fi1ec1 January 28,- 1925. Scrial N0. 5,401.

T0 all zvlmm if wwy 0012001 11:

Beit known tl1at wo, JOHN V. RAUCH zu1d BOYAL R. RAUCH, citizehs 0f tl1e United Status, resi;ding at Newport, in the county 0'l Pencl Oreille und Stute otf Washington, l1ztve invemted new und useiul Improve- 111e110s in SaW Grinclers, 0'f which the foll0Wing is a Specification.

Ourpresent invention lms refe rence t0 a 1neans f01 grin'cling aml shzuqiening the teetl1 ot circulur saws ancl most espe'cially tociictllatl' sawslmvi'ng insertecl teetl1.

Our 0bject ls the rovision 0fa means f01 tlxis pu1Pose which can be r-aamlilY attachecl t the bed of a circular s-uv ancl whicl1' Wlll' separately grind the teetl1 0'f the saw without necessitating the removalol the saw f10111- its mandrel..

A still further Object is the ptovision in a grincling devi ze .f01 the teeth of circular sawsof a grincling stone which is rouncl in plzm ancl Wl1lCll may have a fiat activ'e surface 01 periphery, 01' whose periphe1*y mzty be rounclecl 1"101n the center t0 the sicles tl1ereof in.accorclance with tl1e shape of the saw teeth t0 be operated 0n, ancl wherein simpl@ means is proviclecl f01' guicling tl1e stone t0 it's W01k ancl means, either band 01 power operatecl is also proviclecl for imparting a rapid rotary motion to tl1e grinclfing stone.

A still further 0bject is the rovision 0f a clevicc 'f01' this purpose characteristic 0f slmplicity in construction, cheapness in manufacture, couplecl with ease und accuracy in operation.

With t.l1e above broadly state l objects in view, the invntion further resicles in the constrnction, combination ancl operative association 01 arts such as is clisclosecl by the clrmvings Whi0h accompany and which 1"T0rn1 part of this application;

Figu1e 1 is a sicle elevation ol 0m: improvement.

Figure 2 is a top plan view thereoi.

Figure 8 is a sectional view on tl1e line 3--3 of Figure 2.

Figure 4- is an encl view, a portion 0f the saw becl being in section.

Referring now t0 the drawings in cletail, tl1e timbers constituting the becl for a cir cular saw, a1e indicatecl by the numeral l. 011 tl1e becl the saw 2 is mounted in the usual manner, the means for imparting m0- t1on tothe saw not be1ng 1llustratecl.

Onthel ecl l there. are se iurecl bearings i) und ircspectively. The bearlng 3 lms a contml op0ning therethrouglx und tl1e bea1-' 1 in.g is notched lromits oute1 edge. Tl1e openings in the bearings receive theretllroughshorb .shatfts 01 trunnions 5 ancl 6 011 tl1e encls Oftl1e vertical members 0'l: a -substantially U-shapecl fran1e 7. The fr2une 7 arranged in parallelism with the S2LW 2, tl1e salcl fr2une having 011 its upper portion, und acljacentto wuat I Will term lts 0ute1 trunnion 6)a l1ouslng 8. The top 0 f tl1e housing isprefembly remoimble und a1 ranged in the said housing thereis a comparatively large g6ar wheel 9 which mesl1es withj a pinion 10. Tl1 slmft f01 the gear 9 is incllcatecl by the numeral 11 ancl tlmt l01 the gezu by the numeral 12. Both 0f these shalts are journalecl in suitable bearing openings in ehe sicles of the housing, ancl the slmft 12 also asses throu,gl1 a bearing hub 13 011 the outerlface 0l ehe housing. Tl1e outer encl 0f the shaft 13 ls threadecl, ancl inward of its threacls is preferably square in cross section, tl1e saicl squared porti01'1 engaging the Walls of-a squared central opening 1111 a grincling stone l4, whilenuts 15 arescrewed onthe sl1aft, t0 hold the stone firn1ly 011 said 'shaft. The grinding stone 14 is wund in plan anal Wl1lch, if dsi1ecl, may have its periphery rounclecl f10111 its cente1 to its sides. Thls shape 0f stone i.s desired when 110ll0w saw teeth am to be grouncl.

Tha shaft 11 passes through a bearing hub 16 011 the inner face 01 the housing 8, und secured 011 the 0uter end 0f the said shaf't there is a sprocket wheel 17.

011 the top of the frzune 7, acljacent tl1e inner end thereof, the1e is secured a bearing 18 in which is journaled a shaft 19. Suitable means is providecl f01 l1olcling the shatt from longitudinal movement in it-s bearing, and the saicl shaft lms fixecl thereon a sprocket wheel 20 arrangecl in a line Wih the sprocket wheel 17. A1oun-d the sprocket wheels 17 and 20 tl1ere is trained a chain 21. Tl1e sl1aft 19 is formecl on its inner enol with an angle extension 22 011 whose outer end there .is securecl a preferably revo-luble handle 23. 

